Two variables interact when
a. there are main effects
b. there are no main effects
c. both variables are affected equally by some third factor
d. the effect of one independent variable depends on the level of the other independent variable
d
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On average, how do early-onset alcoholism and late-onset alcoholism differ? a. Early-onset alcoholism is easier to treat
b. Early-onset alcoholism is much more common in men than in women. c. Late-onset alcoholism tends to be more severe. d. Late-onset alcoholism has a stronger genetic basis.
People who experience migraine headaches
A. usually have a history of post-concussive syndrome. B. are equally likely to be male or female. C. are more likely to be male than female. D. are more likely to be female than male.
In order to minimize risks for research participants, researchers should consider potential risks from the viewpoint of _____
a. the participants b. their own experience as participants c. their parents d. alumni who have recently conducted research
At age 65, Reggie retired from high school teaching. This change most likely reflects a:
a. normative, age-graded influence b. normative, history-graded influence c. nonnormative influence d. normative, gender-graded influence